#include <stdio.h>
#include <string.h>
#include <unistd.h>

int main()
{
  //const char* fstr="hello fwrite";
  const char* str="hello write";

  //C
  //printf("hello printf");//stdout->1
  //fprintf(stdout,"hello fprintf");//stdout->1
  //fwrite(fstr,strlen(fstr),1,stdout);
  
  
  //系统调用接口
  write(1,str,strlen(str));

  sleep(5);
  //close(1);
  //fork();
  return 0;
}
